/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.shardingsphere.agent.core.spi;

import lombok.AccessLevel;
import lombok.NoArgsConstructor;
import org.apache.shardingsphere.agent.core.plugin.AgentPluginLoader;

import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import java.util.ServiceLoader;

/**
 * Plugin service loader.
 */
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public final class PluginServiceLoader {
    
    /**
     * New service instances.
     *
     * @param service service type
     * @param <T> type of class
     * @return service instances
     */
    public static <T> Collection<T> newServiceInstances(final Class<T> service) {
        List<T> result = new LinkedList<>();
        ServiceLoader.load(service, AgentPluginLoader.getInstance()).forEach(result::add);
        return result;
    }
}
